I bought the Nitecore NCP40 to carry my EpiPen. The holster fits my EpiPen like a glove and is far more practical than bulky medical cases and backpacks or ugly fanny packs. Like many men, I also do not use purses and find this holster an excellent alternative – if your partner does use a purse, they will likely appreciate not having to store your adrenaline autoinjector for you, as it often happens. The NCP40 is sturdy and its Velcro straps make it easy to attach to a belt, serving as a useful reminder to bring your noradrenaline autoinjector, as it becomes part of the routine of getting dressed. I will certainly use this holster every day, provided that the outside temperature does not exceed the manufacturer's storage conditions. I highly recommend this product to keep your EpiPen with you at all times with comfort and style. Although I have not tested it, I would expect the NCP40 to fit other autoinjector brands, as they usually come in standard sizes.